Security News > 2023 > May
A new ransomware operation named 'Buhti' uses the leaked code of the LockBit and Babuk ransomware families to target Windows and Linux systems, respectively. Blacktail uses the Windows LockBit 3.0 builder that a disgruntled developer leaked on Twitter in September 2022.
A vulnerability in Barracuda Networks' Email Security Gateway appliances has been exploited by attackers, the company has warned. CVE-2023-2868 is a critical remote command injection vulnerability affecting only physical Barracuda Email Security Gateway appliances, versions 5.1.3.001 - 9.2.0.006.
A stealthy China-based group managed to establish a persistent foothold into critical infrastructure organizations in the U.S. and Guam without being detected, Microsoft and the "Five Eyes" nations said on Wednesday. The tech giant's threat intelligence team is tracking the activity, which includes post-compromise credential access and network system discovery, under the name Volt Typhoon.
Microsoft says some 32-bit applications are impacted by recurring failures when saving and copying files across multiple Windows versions. The intermittent issue only affects apps that are large address aware and are also using the CopyFile API on Windows 11 21H2 and 22H2 or Windows 10 21H2 and 22H2. "Windows devices are more likely to be affected by this issue when using some commercial/enterprise security software which uses extended file attributes," Microsoft said.
The Iranian threat actor known as Agrius is leveraging a new ransomware strain called Moneybird in its attacks targeting Israeli organizations. Agrius, also known as Pink Sandstorm, has a track record of staging destructive data-wiping attacks aimed at Israel under the guise of ransomware infections.
Google on Wednesday announced the 0.1 Beta version of GUAC for organizations to secure their software supply chains. GUAC aims to aggregate software security metadata from different sources into a graph database that maps out relationships between software, helping organizations determine how one piece of software affects another.
In response to these risks, the US government reinforced critical infrastructure security by introducing Cross-Sector Cybersecurity Performance Goals mandated by the US Cybersecurity Infrastructure & Security Agency. Recently, CISA updated the CPGs to align with NIST's standard cybersecurity framework, establishing each of the five goals as a prioritized subset of IT and OT cybersecurity practices.
According to Imperva, bad bot traffic grew to 30.2%, a 2.5% increase over 2021. In this Help Net Security video, Lynn Marks, Senior Product Manager at Imperva, discusses malicious bot activity.
To achieve a diverse and well-trained cybersecurity workforce, organizations recognize the value of a quality training program supported by the pursuit of cybersecurity certifications, according to Security Innovation and Ponemon Institute. The report revealed a growing embrace of realistic simulations in training programs, with respondents ranking this feature as highly effective and delivering the greatest ROI compared with other cybersecurity training program components.
China has attacked critical infrastructure organizations in the US using a "Living off the land" attack that hides offensive action among everyday Windows admin activity. The attack was spotted by Microsoft and acknowledged by intelligence and infosec agencies from the Five Eyes nations - Australia, Canada, New Zealand, the UK and the US. A joint cyber security advisory [PDF] from ten agencies describes "a recently discovered cluster of activity of interest associated with a People's Republic of China state-sponsored cyber actor, also known as Volt Typhoon."